BODY TEMPERATURE OXYGEN CONSUMPTION HEART RATE AND SHIVERING IN CALIFORNIA MASTIFF BAT EUMOPS PEROTIS
BODY TEMPERATURE OXYGEN CONSUMPTION HEART RATE AND SHIVERING IN CALIFORNIA MASTIFF BAT EUMOPS PEROTIS
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DOI：
10.1016/0010-406x(66)90152-6
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发表时间：
1966-01-01
期刊：
影响因子：
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通讯作者：
LEITNER, P
中科院分区：
文献类型：
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作者：
LEITNER, P
加州的獒蝠，Eumops perotis，可以在0到30摄氏度的环境温度下，将自己的体温调节到30到34摄氏度。Eumpos耐受至少高达39[degree] C的环境温度而没有热应激，尽管高于30[degree] C体温升高0.69%C。在冬季，Eamops每天都处于麻木状态，而不是长时间的冬眠。蝙蝠维持高体温的最低耗氧量发生在31 ℃，仅为体重预测值的55%。Eumops符合牛顿冷却定律，因为代谢-环境温度曲线外推到接近体温的值。热传导性与大多数其他类似大小的恒温动物相当。静息心率在30[degree]C时最低，高于和低于此环境温度时都会增加。虽然氧脉搏随着环境温度的降低而增加，但在低环境温度下满足代谢需求的主要循环调节是心率的升高。颤抖出现在23[degree] C的环境温度下，并且随着环境温度的降低以线性方式增加。
The California mastiff bat, Eumops perotis, can regulate its body temperature between 30[degree] and 34[degree] C at ambient temperatures from 0[degree] to 30[degree] C. Eumpos tolerates ambient temperatures at least as high as 39[degree] C without heat stress, although above 30[degree] C body temperature rises by 0.69%C increase in ambient temperature. During the winter Eamops engages in daily torpor, rather than prolonged hibernation. Minimal oxygen consumption of bats maintaining a high body temperature occurs at 31 [degree]C and is only 55 per cent of the value predicted on the basis of body weight. Eumops conforms to Newton''s Law of Cooling, since the metabolismambient temperature curve extrapolates to a value close to the body temperature. Thermal conductance is comparable to that of most other homeotherms of similar size. Resting heart rate is minimal at 30[degree]C and increases both above and below this ambient temperature. Although oxygen pulse increases as ambient temperature decreases, the main circulatory adjustment to meet metabolic demands at low ambient temperatures is the rise in heart rate. Shivering appears at an ambient temperature of 23[degree] C and increases in a linear manner with decreasing ambient temperature.